npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

cursor-mdc-lint

v1.0.0

Published

Lint .mdc rule files for Cursor AI. Catches broken YAML frontmatter, invalid globs, vague prompts, and semantic conflicts between rules. Powered by cursor-doctor.

Readme

cursor-mdc-lint

Lint .mdc rule files for Cursor AI. Find broken frontmatter, invalid globs, and conflicts between rules.

npx cursor-mdc-lint

Scans every .mdc file in .cursor/rules/ and reports:

  • Missing or broken YAML frontmatter
  • Rules that will never load (misconfigured alwaysApply and globs)
  • Vague instructions that waste context window tokens
  • Semantic conflicts between rule files
  • Invalid glob patterns
  • Duplicate content across files

100+ checks. No install, no config, zero dependencies in your project.

Commands

npx cursor-mdc-lint          # detailed per-file lint report
npx cursor-mdc-lint scan     # quick health grade (A-F)
npx cursor-mdc-lint check    # CI-friendly (exits 1 on D/F grade)

How it works

This package wraps cursor-doctor, which runs all the actual checks. If you already have cursor-doctor installed, use that directly.

Links